打印页码为1，3—5，9表示打印( )。 A．第1、3、5、9页 B．第1页，第

Many people believe that 3G mobile phones will be used in almost all everyday activities. It____that we won’t go shopping because most things will be available(可得到的) on the Internet. There will be no more____ because all texts will be available in electronic libraries. The Internet will be used to plan holidays, rent films and_____ food. Most telephone calls will be ____ by 3G mobile phones as well.

Some people are ____ about the new development. Others, however, don’t think that 3G mobile phones will replace the old __   of shopping and communicating.

Let’s look at books, for example. Some people believe that one day we won’t read books made of paper. ____, we’ll read books by using 3G mobile phones. These mobile phones will store the contents（内容）of many different books at the same time. We won’t need to turn lots of pages and paper will be ____. Is the Internet shopping as fun as traditional shopping? Many people say it’s not. It’s __   _ to go into shops and look at things. It’s also___   that most people will want to read books on their 3G mobile phones. Maybe 3G mobile phones won’t change these two habits.

远处隆隆的雷声预示着一场可能的大雨，说明声音能传递______；外科医生可以利用超声波振动除去人体内的结石，说明声具有______；根据______原理，科学家发明了声纳．

根据字母提示完成单词拼写。

1.Tom loves playing b______ l.

2. Kitty is eleven-y______-old.

3. Lucy is a very c______ girl.

4. Simon does not w______ glasses.

5. We w______ to school every day.

6. Sandy doesn't like listening to m______.

7. Susan and Alice are q______ different.

下述病理改变中属于上皮异常增生的是（）

A.基底细胞液化变性

B.基底细胞极性消失

C.上皮钉突呈锯齿状

D.细胞间桥溶解

E.细胞核固缩

Melissa and LoveLetter made use of the trust that exists between friends orcolleagues．Imagine receiving an (71) from a friend who asks you to open it．This is whathappens with Melissa and several other similar email (72) ．Upon running，such wormsusually proceed to send themselves out to email addresses from the victim’s address book，previous emails，web pages (73) ．

A．virtual B．virus C．worm D．bacteria

As administrators seek to block dangerous email attachments through the recognition ofwell—known (74) ，virus writers use other extensions to circumvent such protection．Executable(.exe)files are renamed to．bat and．cmd plus a whole list of other extensions and wilt still runand successfully infect target users．
Frequently，hackers try to penetrate networks by sending an attachment that
looks like a flash movie，which，while displaying some cute animation，simultaneouslyruns commands in the background to steal your passwords and give the (75) access to yournetwork．
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